Validating event of text box in vb net sakura dating

02 Oct

Private Sub txt Name_Leave(By Val sender As Object, By Val e As System.

validating event of text box in vb net-48

These attributes are written out because of the Model Client Validation Rule you’ve put together.The Get Client Validation Rules method that you need to implement has one simple function.Using the metadata parameter, you are required to construct one or more Model Client Validation Rules which are returned from the method and used by the framework to output the client-side HTML5 data-* attributes that are necessary for client-side validation. In that case you should also somehow tell the user that there’s a problem with the field. For example, if the user presses Tab, clicks on another control, presses Enter to trigger the Accept button, or presses Esc to trigger the Cancel button.For example, you could display an error message, change the field’s background color, or at least beep to let the user know that focus did not leave the field because something is wrong. The event triggers even if the user tries to close the form.